Buy on Amazon
$236.22
In Stock
Base Clock
Boost Clock
AvailabilityMSRP in USD: $999
Availability
MSRP in USD: $999
No items available
AvailabilityMSRP in USD: $379
Availability
MSRP in USD: $379
Buy on Amazon
$399.99
In Stock
Same as Founder's Edition
Buy on Amazon
$459.99
In Stock
Base Clock
Boost Clock
Buy on Amazon
$649.99
In Stock
Same as Founder's Edition
Buy on Amazon
$399.99
In Stock
Same as Founder's Edition
Buy on Amazon
$262.47
In Stock
Base Clock
Boost Clock
Buy on Amazon
$575.19
In Stock
Base Clock
Boost Clock
Key Differences
In short — Radeon RX 6600 XT outperforms Radeon HD 7990 on the selected game parameters. We do not have the prices of both CPUs to compare value. The better performing Radeon RX 6600 XT is 3019 days newer than Radeon HD 7990.
Advantages of AMD Radeon RX 6600 XT
- Performs up to 506% better in Overwatch 2 than Radeon HD 7990 - 194 vs 32 FPS
- Consumes up to 57% less energy than AMD Radeon HD 7990 - 160 vs 375 Watts
- Up to 167% more VRAM memory than AMD Radeon HD 7990 - 8 vs 3 GB
Overwatch 2
Resolution
1920 x 1080
Game Graphics
Epic
Radeon RX 6600 XT
Desktop • Jul 30th, 2021
FPS
194
100%
Value, $/FPS
$1.22/FPS
100%
Price, $
$236.22
100%
FPS and Value Winner
Sapphire 11309-03-20G Pulse AMD Radeon RX 6600 XT Gaming Graphics Card with 8GB GDDR6, AMD RDNA 2
Buy for $236.22 on Amazon
In Stock
Updated 6323 minutes ago
TOP 5 Games
Resolution
1920 x 1080
Game Graphics
Epic
Radeon HD 7990
Desktop • Apr 24th, 2013
Radeon RX 6600 XT
Desktop • Jul 30th, 2021
Theoretical Performance
Radeon RX 6600 XT
Desktop • Jul 30th, 2021
Pixel Fillrate
165.7 GPixel/s
100%
Texel Fillrate
331.4 GTexel/s
100%
AMD Radeon HD 7990 | vs | AMD Radeon RX 6600 XT |
|---|---|---|
| Apr 24th, 2013 | Release Date | Jul 30th, 2021 |
| Southern Islands | Generation | Navi II |
| $999 | MSRP | $379 |
| 1x DVI, 4x mini-DisplayPort | Outputs | 1x HDMI 2.1, 3x DisplayPort 1.4a |
| 2x 8-pin | Power Connectors | 1x 8-pin |
Desktop | Segment | Desktop |
| 3 GB | Memory | 8 GB |
| GDDR5 | Type | GDDR6 |
| 384-bit | Bus | 128-bit |
288 GB/s | Bandwidth | 256 GB/s |
| 950 MHz | Base Clock Speed | 1968 MHz |
| 1000 MHz | Boost Clock Speed | 2589 MHz |
| 1500 MHz | Memory Clock Speed | 2000 MHz |
Builds Using Radeon HD 7990 or Radeon RX 6600 XT
Overwatch 2, 1920 x 1080, Epic
157 FPS
$8.86/FPS
Radeon RX 6600 XT
Ryzen 7 5800
16 GB, 1 TB SSD
Buy on Amazon
$1,391.04
In Stock
153 FPS
$5.88/FPS
Radeon RX 6600 XT
Ryzen 7 5700G
16 GB, 512 GB SSD
Buy on Amazon
$899.99
In Stock
150 FPS
$7.99/FPS
Radeon RX 6600 XT
Ryzen 5 5600G
16 GB, 480 GB SSD
Buy on Amazon
$1,199
In Stock
153 FPS
$6.53/FPS
Radeon RX 6600 XT
Ryzen 7 5700G
32 GB, 2 TB SSD
Buy on Amazon
$999
In Stock
153 FPS
$5.65/FPS
Radeon RX 6600 XT
Ryzen 7 5700G
32 GB, N/A Storage
Buy on Amazon
$864.99
In Stock
159 FPS
$9.05/FPS
Radeon RX 6600 XT
Ryzen 5 5600X
16 GB, 480 GB SSD + 1 TB HDD
Buy on Amazon
$1,438.88
In Stock
141 FPS
$6.74/FPS
Radeon RX 6600 XT
Ryzen 5 3600
16 GB, 1 TB SSD
Buy on Amazon
$949.99
In Stock
157 FPS
$10.18/FPS
Radeon RX 6600 XT
Core i7-11700F
16 GB, 480 GB SSD
Buy on Amazon
$1,598.88
In Stock
153 FPS
$9.8/FPS
Radeon RX 6600 XT
Ryzen 7 5700G
64 GB, 2 TB SSD
Buy on Amazon
$1,499
In Stock
159 FPS
$6.48/FPS
Radeon RX 6600 XT
Ryzen 5 5600X
16 GB, N/A Storage
Buy on Amazon
$1,029.99
In Stock
Similar GPU Comparisons
Select from the most popular similar graphics card comparisons. Most compared graphics card combinations, including the currently selected ones, are at the top.
